#include "main.h"




int main(void)
{
	//系统初始化 72Mhz
  systick_config();
	//初始化LED
  LED_init();
	
	while(1)
	{
		//开启LED1灯
		LED1_ON();
		//延迟500ms
		delay_1ms(2000);
		//关闭LED1灯
		LED1_OFF();
		//延迟500ms
		delay_1ms(2000);
	}
    
}
